Features
Quickly and effectively solves the low power problem for your phone while on-the-go
Keeps your Samsung Galaxy S3 I9300 always powered
Supports over-current、 over-voltage、 over-charge、 over-discharge and short circuit protection
Lightweight and compact size for ease of carrying
A must-have item for travel and going on business
General Specs 
CompatibilitySamsung Galaxy S3 I9300
Capacity3500mAh  
BatteryLithium polymer battery
Input5V 500mA
Output 5V 750mA
Charging Time4 hours
Package Details Weight: g
Size: cm